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ALSA: hdsp: Convert to the new PCM ops

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Replace the copy and the silence ops with the new PCM ops.
The conversion is straightforward with standard helper functions.

Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2017-05-10 20:32:25 +02:00
parent 7b6ae34da6
commit 0925e6b26f
1 changed files with 50 additions and 17 deletions
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67
sound/pci/rme9652/hdsp.c
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@ -3913,42 +3913,73 @@ static char *hdsp_channel_buffer_location(struct hdsp *hdsp,
return hdsp->playback_buffer + (mapped_channel * HDSP_CHANNEL_BUFFER_BYTES);
}
static int snd_hdsp_playback_copy(struct snd_pcm_substream *substream, int channel,
snd_pcm_uframes_t pos, void __user *src, snd_pcm_uframes_t count)
static int snd_hdsp_playback_copy(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
void __user *src, unsigned long count)
{
struct hdsp *hdsp = snd_pcm_substream_chip(substream);
char *channel_buf;
if (snd_BUG_ON(pos + count > HDSP_CHANNEL_BUFFER_BYTES / 4))
if (snd_BUG_ON(pos + count > HDSP_CHANNEL_BUFFER_BYTES))
return -EINVAL;
channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);
if (snd_BUG_ON(!channel_buf))
return -EIO;
if (copy_from_user(channel_buf + pos * 4, src, count * 4))
if (copy_from_user(channel_buf + pos, src, count))
return -EFAULT;
return count;
return 0;
}
static int snd_hdsp_capture_copy(struct snd_pcm_substream *substream, int channel,
snd_pcm_uframes_t pos, void __user *dst, snd_pcm_uframes_t count)
static int snd_hdsp_playback_copy_kernel(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
void *src, unsigned long count)
{
struct hdsp *hdsp = snd_pcm_substream_chip(substream);
char *channel_buf;
if (snd_BUG_ON(pos + count > HDSP_CHANNEL_BUFFER_BYTES / 4))
channel_buf = hdsp_channel_buffer_location(hdsp, substream->pstr->stream, channel);
if (snd_BUG_ON(!channel_buf))
return -EIO;
memcpy(channel_buf + pos, src, count);
return 0;
}
static int snd_hdsp_capture_copy(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
void __user *dst, unsigned long count)
{
struct hdsp *hdsp = snd_pcm_substream_chip(substream);
char *channel_buf;
if (snd_BUG_ON(pos + count > HDSP_CHANNEL_BUFFER_BYTES))
return -EINVAL;
channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);
if (snd_BUG_ON(!channel_buf))
return -EIO;
if (copy_to_user(dst, channel_buf + pos * 4, count * 4))
if (copy_to_user(dst, channel_buf + pos, count))
return -EFAULT;
return count;
return 0;
}
static int snd_hdsp_hw_silence(struct snd_pcm_substream *substream, int channel,
snd_pcm_uframes_t pos, snd_pcm_uframes_t count)
static int snd_hdsp_capture_copy_kernel(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
void *dst, unsigned long count)
{
struct hdsp *hdsp = snd_pcm_substream_chip(substream);
char *channel_buf;
channel_buf = hdsp_channel_buffer_location(hdsp, substream->pstr->stream, channel);
if (snd_BUG_ON(!channel_buf))
return -EIO;
memcpy(dst, channel_buf + pos, count);
return 0;
}
static int snd_hdsp_hw_silence(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
unsigned long count)
{
struct hdsp *hdsp = snd_pcm_substream_chip(substream);
char *channel_buf;
@ -3956,8 +3987,8 @@ static int snd_hdsp_hw_silence(struct snd_pcm_substream *substream, int channel,
channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);
if (snd_BUG_ON(!channel_buf))
return -EIO;
memset(channel_buf + pos * 4, 0, count * 4);
return count;
memset(channel_buf + pos, 0, count);
return 0;
}
static int snd_hdsp_reset(struct snd_pcm_substream *substream)
@ -4869,8 +4900,9 @@ static const struct snd_pcm_ops snd_hdsp_playback_ops = {
.prepare = snd_hdsp_prepare,
.trigger = snd_hdsp_trigger,
.pointer = snd_hdsp_hw_pointer,
.copy = snd_hdsp_playback_copy,
.silence = snd_hdsp_hw_silence,
.copy_user = snd_hdsp_playback_copy,
.copy_kernel = snd_hdsp_playback_copy_kernel,
.fill_silence = snd_hdsp_hw_silence,
};
static const struct snd_pcm_ops snd_hdsp_capture_ops = {
@ -4881,7 +4913,8 @@ static const struct snd_pcm_ops snd_hdsp_capture_ops = {
.prepare = snd_hdsp_prepare,
.trigger = snd_hdsp_trigger,
.pointer = snd_hdsp_hw_pointer,
.copy = snd_hdsp_capture_copy,
.copy_user = snd_hdsp_capture_copy,
.copy_kernel = snd_hdsp_capture_copy_kernel,
};
static int snd_hdsp_create_hwdep(struct snd_card *card, struct hdsp *hdsp)